Hi ! We have a dream-mini fleet of ebikes we hoped to rent out, 500w motor; 48v battery. We received the bike - half had euro plugs and half had american plugs. Company difficult to deal with. To top it off, after approximately 3 rides, the bikes won't connect for PAS, batteries only hold a charge once plugged into wall outlet. I think we need new controller & display. Any ideas? USA companies that can help?